Without better AF in the bodies, I personally have no use for these lenses as tempting as they might be. The sad thing is, the camera will hunt and hunt and rarely ever achieve perfect focus.

Great camera for MF lenses, but really the system issues are nearly unbearable for a lot of general use cases. I have been very close to selling mine several times. I got my 5N on Sept 1 2011. My favorite combo is the Sigma E 30mm in MF mode.